<!-- (c) 2019 PMD -->
Methods such as getDeclaredConstructors(), getDeclaredConstructor(Class[]) and setAccessible(), as the interface PrivilegedAction, allow for the runtime alteration of variable, class, or method visibility, even if they are private. This violates the principle of encapsulation.

<h2>Example:</h2>
<pre>
import java.lang.reflect.AccessibleObject;
import java.lang.reflect.Method;
import java.security.PrivilegedAction;

public class Violation {
  public void invalidCallsInMethod() throws SecurityException, NoSuchMethodException {

    // Possible call to forbidden getDeclaredConstructors
    Class[] arrayOfClass = new Class[1];
    this.getClass().getDeclaredConstructors();
    this.getClass().getDeclaredConstructor(arrayOfClass);
    Class clazz = this.getClass();
    clazz.getDeclaredConstructor(arrayOfClass);
    clazz.getDeclaredConstructors();

    // Possible call to forbidden setAccessible
    clazz.getMethod("", arrayOfClass).setAccessible(false);
    AccessibleObject.setAccessible(null, false);
    Method.setAccessible(null, false);
    Method[] methodsArray = clazz.getMethods();
    int nbMethod;
    for (nbMethod = 0; nbMethod < methodsArray.length; nbMethod++ ) {
      methodsArray[nbMethod].setAccessible(false);
    }

    // Possible call to forbidden PrivilegedAction
    PrivilegedAction priv = (PrivilegedAction) new Object(); priv.run();
  }
}
</pre>
